222755500 has 96 divisors (see below), whose sum is σ = 537316416. Its totient is φ = 80000000.

The previous prime is 222755497. The next prime is 222755531. The reversal of 222755500 is 5557222.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555300 + ... + 555700.

It is an arithmetic number, because the mean of its divisors is an integer number (5597046).

Almost surely, 2^222755500 is an apocalyptic number.

222755500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222755500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268658208).

222755500 is an abundant number, since it is smaller than the sum of its proper divisors (314560916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222755500 is a wasteful number, since it uses less digits than its factorization.

222755500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 222755500 is about 14924.9958123947. The cubic root of 222755500 is about 606.1909922375.

The spelling of 222755500 in words is "two hundred twenty-two million, seven hundred fifty-five thousand, five hundred".